JPH10326604A - Battery storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the connection of a battery in the reverse direction. SOLUTION: The connection of a battery in the reverse direction is prevented by using a guarding jumper cable 34 with a projecting length (diameter) longer than that (diameter) of a jumper cable 32 for the positive terminals. When a battery is placed in the correct direction, the positive terminals of the battery are held between the guarding cable 34. When a battery is placed in the reverse direction, the negative terminals of the battery are held part from the jumper cable 32 for the positive terminals. Thus, the battery is not connected to the terminals of a power circuit thereby avoiding leakage from a battery placed in the reverse direction. In addition, no short-circuit preventing device is required. Moreover, the battery case has a constitution preventing the connecting of batteries in the reverse direction by using the guarding jumper cable 34 with a projecting length longer than that of the jumper cable 32 for the positive terminals, thereby reducing the cost and facilitating the manufacture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery storage device for storing batteries.

[0002]

2. Description of the Related Art For example, portable electric equipment which consumes relatively little power usually uses dry batteries (hereinafter simply referred to as "batteries"). Therefore, a portable electric device is provided with a battery storage device for storing a battery. Hereinafter, a conventional battery storage device will be described with reference to FIG.

As shown in FIG. 7, a storage section 50 of a battery storage device is formed in a concave shape so that a battery can be stored therein.
A battery cover 52 that covers the opening 50A of the storage section 50 is rotatably disposed. Further, in the housing portion 50, a negative electrode terminal member 54 formed with a coil spring having conductivity at portions respectively corresponding to the negative electrode terminal and the positive electrode terminal of the battery, and a pair of cylindrical positive terminals formed with a jumper wire. A member 56 is arranged.

A positive terminal member 56 is mounted on a circuit board 58, and both ends thereof are connected to power terminals of the circuit. Further, the negative electrode terminal member 54 is also connected to the power terminal of the circuit. In addition, the positive electrode terminal member 56 is quickly attached to the circuit board 58 by an automatic insertion machine. The pair of positive electrode terminal members 56 have substantially the same diameter.

[0005] Then, the negative electrode terminal and the positive electrode terminal of the battery are connected to the negative electrode terminal member 54 and the positive electrode terminal member 5 in the accommodating portion 50.
6 are inserted into the storage section 50 so as to correspond to the respective sections 6. That is, after the negative electrode terminal of the battery is pressed against the negative electrode terminal member 54 in the form of a coil spring, the battery is rotated to make the positive electrode terminal correspond to the positive terminal member 56.

As shown in FIG. 8, the positive terminal 60A of the battery 60 is pressed against the positive terminal 56 by the urging force of the negative terminal 54, and the positive terminal 6A of the battery 60 is pressed.
0A and the negative electrode terminal 60B are held in a state of contact (connection) with the negative electrode terminal member 54 and the positive electrode terminal member 56. When the battery 60 is connected to the terminal members 54 and 56, the voltage is applied to the power supply terminal of the circuit.

[0007]

When the battery 60 is inserted in the opposite direction as shown in FIG.
The negative electrode terminal 60B of 0 contacts the positive electrode terminal member 56, and the positive electrode terminal 60A contacts the negative electrode terminal member 54.

In this state, since a reverse voltage is applied to the power supply terminal of the circuit, the power supply circuit is short-circuited. Therefore, the power supply circuit is provided with a short-circuit prevention circuit to prevent this short-circuit.

When a pair of batteries are connected in series, if one of the batteries is inserted in the reverse direction and the other battery is inserted in the forward direction as shown in FIG. Is charged by the other battery having a higher voltage. Therefore, in the battery to be charged, the gas generated in the battery cannot be rapidly discharged to the outside, so that the internal pressure increases and liquid leakage or the like occurs.

In view of the above, an object of the present invention is to limit connection of a battery in a reverse direction.

[0011]

According to a first aspect of the present invention, there is provided a battery storage device including a storage portion for storing a battery, a circuit board disposed in the storage portion, and a positive electrode terminal of the battery on the circuit board. A jumper wire for a positive electrode terminal arranged to contact the protrusion of the positive electrode terminal on one surface side opposite to the positive electrode terminal; and an elastically deformable negative electrode arranged in the housing portion so as to contact the negative electrode terminal of the battery. A terminal member and a range around the positive terminal jumper wire of the circuit board, which is wider than the width of the protrusion of the positive terminal of the battery in the width direction and narrower than the width of the negative terminal of the battery in the width direction. Placed in
And a guard jumper wire having a protrusion amount larger than a protrusion amount of the positive terminal jumper wire from one surface side of the circuit board.

In the battery storage device according to the first aspect of the present invention, after the negative electrode terminal of the battery is pressed against the negative electrode terminal member, the battery is rotated and inserted into the storage portion. Then
The positive terminal of the battery is urged by the urging force of the negative terminal member, and the positive terminal of the battery contacts (connects) to the positive terminal jumper wire, which is the positive terminal member.

In this contact state, the positive terminal of the battery is held, for example, between guard jumper wires. That is, when the battery is loaded in the forward direction, the guard jumper does not hinder the contact between the positive terminal of the battery and the positive terminal jumper.

Therefore, in the present invention, the negative electrode terminal and the positive electrode terminal of the battery are held in contact with the negative electrode terminal member and the housing. When the battery is removed from the storage section, for example, the operation reverse to the above is performed.

When the battery is inserted in the reverse direction, the battery is connected in the reverse direction because the negative terminal of the battery is held away from the positive terminal member by the guard jumper wire. Therefore, according to the present invention, since the battery is not connected to the terminal of the power supply circuit, leakage of the battery when the battery is inserted in the reverse direction is prevented, and a short circuit prevention circuit is not required.

In the present invention, the jumper wire for the positive terminal is quickly attached to the circuit board by the automatic insertion machine, and the guard jumper wire is quickly attached to the circuit board by the automatic insertion machine. Therefore, it is possible to provide a battery storage device that is inexpensive and easy to manufacture.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a battery storage device according to the present invention will be described with reference to FIGS. In the drawings, the arrow BK indicates the rear side, the arrow RL indicates the right side, and the arrow UP indicates the upper side.

As shown in FIG. 1, a hook (not shown) is formed on the front side of the battery cover 24, and the hook is locked to the locking portion 18A of the panel 18 so that the battery cover 24 is attached to the battery storage portion. 22 is held in a closed state (not shown). In this closed state, the upper surface of the panel 18 and the upper surface of the battery lid 24 are substantially flush.

A plurality of (two in this embodiment) AA manganese dry batteries (hereinafter, simply referred to as "batteries") 28 (see FIG. 2) are loaded in the battery accommodating portion 22 in a left-right parallel manner. The loading sections 22B and 22C are arranged in a plurality of rows (in the present embodiment,
2 rows).

A protrusion 36 shown in FIG. 1 is provided on the battery housing 22 at a middle portion in the front-rear side and in the left-right direction (a portion for dividing the battery 28 into right and left). A pair is formed, and the battery housing section 22 is divided into two into the loading sections 22B and 22C by the projections 36. FIG. 1 does not show the front protrusion.

As shown in FIG. 1, the loading sections 22B and 22
In C, a circuit board 26 is disposed on the rear side. Positive electrode terminal 28A which is a protrusion of battery 28 of circuit board 26
A pair of conductive positive electrode terminal jumper wires 32, which are positive electrode terminal members formed with jumper wires, are attached to one surface 26A side (front side) opposed to (see FIG. 2).

As shown in FIGS. 2 and 3, these positive terminal jumpers 32 are connected to one surface 26A of the circuit board 26.
Mounted side by side. The positive terminal jumper wire 32 has a diameter L1 of 0.5 mm.

The pair of positive terminal jumpers 32 has a predetermined length L3 (FIG. 2) so as to oppose (contact) the positive terminal 28A of the battery 28 when the battery 28 is loaded in the loading sections 22B and 22C. Reference). As shown in FIG. 2, this length L3 is
The length A is shorter than the length L4 in the width direction.

Also, outside the positive terminal jumper wire 32, the amount of protrusion from the one surface 26A of the circuit board 26 shown in FIG. 1, that is, a diameter L2 larger than the diameter L1 of the positive terminal jumper wire 32 (this example). A pair of guard jumper wires 34 of 1 mm are mounted outside the positive terminal jumper wire 32, that is, sandwiching the pair of positive terminal jumpers 32 from both left and right sides.

The guard jumper wire 34 is connected to the negative terminal 2 of the battery 28 when the battery 28 is mounted in the reverse direction.
As long as 8B does not contact the positive terminal jumper wire 32, the same can be applied to a jumper wire having a diameter L2 of, for example, 0.6 mm. In the present embodiment, the diameter L1 of the positive terminal jumper wire 32
Is 0.5 mm, and the diameter L of the guard jumper wire 34 is
The reason why 2 is set to 1 mm is that these jumpers having diameters L1 and L2 are commonly used.

The distance L5 between the guard jumper wires 34 is the length L4 of the positive terminal 28A of the battery 28 in the width direction.
The negative electrode terminal 28B is disposed so as to face a range wider than and narrower than the length L6 in the width direction of the negative electrode terminal 28B.

That is, as shown in FIGS. 1 and 2, the jumper wire 32 for the positive terminal and the jumper wire 34 for the guard are used.
Are arranged in parallel. As shown in FIG. 4, when the battery 28 is inserted in the reverse direction, the diameter L2 of the guard jumper wire 34 (see FIG. 2) is larger than the diameter L1 of the positive terminal jumper wire 32 (see FIG. 2). ), The negative electrode terminal 28B of the battery 28 is held by the guard jumper wire 34 in a state of being separated from the positive terminal jumper wire 32.

Note that (both ends of the jumper wire for the positive electrode terminal)
Only 32 is connected to the power terminal of the circuit, and the guard jumper wire 34 is simply attached to the circuit board. Also, the shape of the jumper wire 32 for the positive terminal and the jumper wire 34 for the guard may be a prismatic shape in addition to the column shape, and the jumper wire 32 for the positive terminal and the guard jumper wire 34 are completely parallel. It may not be present, and may be slightly oblique.

On the other hand, as shown in FIG. 1, each of the loading portions 22B and 22C has a negative electrode terminal member 40 formed with a coil spring having conductivity on the front side thereof, which is fixed to a terminal holding portion (not shown). In addition, the negative electrode terminal member 40 is tapered from its base end (the end on the side of the terminal holding portion) to the front end, and comes into contact with the front end with the negative electrode terminal 28B of the battery 28 shown in FIG.

The operation of the battery storage device of this embodiment will be described. First, the lid 14 shown in FIG. 1 is rotated to open. When the battery 28 is inserted into the battery housing 22 in this open state, as shown in FIG. 3, the positive terminal 28A of the battery 28 is urged by the urging force of the negative terminal member 40, and the positive terminal 28A of the battery 28 is It is held in contact with the positive terminal jumper wire 32 in the battery housing 22.

In this contact state, the positive electrode terminal 28A of the battery 28 is held between the guard jumper wires 34. That is, when the battery 28 is loaded in the forward direction, the guard jumper wire 34 is connected to the battery 2.
8 does not hinder contact between the positive electrode terminal 28A and the positive terminal jumper wire 32.

In this embodiment, the batteries 28 are loaded in parallel into the two loading sections 22B and 22C in the battery storage section 22, respectively. In this loaded state, the negative terminal 28 </ b> B and the positive terminal 28 </ b> A of the battery 28 are held in contact with the positive terminal jumper wire 32 and the negative terminal member 40 in the battery housing 22.

With these batteries 28 held in the battery housing 22, the battery cover 24 is closed. When the battery 28 is removed from the inside of the battery storage section 22, for example, the operation reverse to the above is performed.

On the other hand, as shown in FIG. 4, when the battery 28 is inserted in the reverse direction, the negative terminal 28B of the battery 28 is held by the guard jumper wire 34 while being separated from the positive terminal jumper wire 32. Therefore, the connection of the battery 28 in the reverse direction is restricted. Therefore, according to the present embodiment, since the battery 28 is not connected to the terminal of the power supply circuit,
When the battery 28 is inserted in the reverse direction, leakage of the battery 28 and the like are prevented, and a short-circuit prevention circuit is not required.

In the present embodiment, the jumper wire 32 for the positive terminal is quickly attached to the circuit board 26 by the automatic insertion machine, and the jumper wire 34 for the guard is used.
Is quickly attached to the circuit board 26 by the automatic insertion machine, so that no extra work is required and the cost is hardly changed.

Therefore, according to the present embodiment, the battery 28 is turned in the opposite direction to the battery 28 by using the guard jumper wire 34 having a protrusion amount (diameter L2) larger than the protrusion amount (diameter L1) of the positive terminal jumper line 32. Is limited, the cost is reduced, and the manufacturing is easy.

Note that the number of loading sections (that is, the number of batteries stored in the storage section) of the present invention is not limited to the above-described embodiment, and a single or plural batteries can be similarly applied.

As shown in FIG. 5, the positional relationship between the jumper wire 32 for the positive electrode terminal and the jumper wire 34 for the guard according to the present invention is such that the guard jumper wire 34 is substantially perpendicular to the jumper wire 32 for the positive electrode terminal. May be arranged.

As shown in FIG. 6, the guard jumper wire 34 can be reduced to only one. In this case, even if the battery 28 is inserted in the reverse direction,
Can be prevented, and the negative terminal 28B can be prevented from contacting the jumper wire 32 for the positive terminal.

Further, although not shown, a single jumper wire may be provided in a direction substantially orthogonal to the positive electrode terminal member to form a guard jumper wire.

The type of the battery stored in the storage section is not limited to that of the embodiment, but may be, for example, an alkaline dry battery or the like, or may be a C-size dry battery or the like.

Although the present embodiment is an example in which the negative electrode terminal member is a coil spring, the negative electrode terminal member of the present invention may be a leaf spring or the like as long as it urges the battery toward the positive electrode terminal member. good.

Further, the present invention is applicable to an electric apparatus including a battery storage device for storing a battery, such as a portable CD player, a portable radio, a tape recorder, and various remote controllers. Applicable to

[0044]

As described above, according to the present invention, the connection of the battery in the reverse direction is restricted by using a guard jumper wire having a protrusion amount larger than that of the positive terminal jumper wire. Therefore, the negative terminal of the battery is held apart from the positive terminal member by the guard jumper wire, thereby restricting the connection of the battery in the reverse direction. Therefore, according to the present invention, since the battery is not connected to the terminal of the power supply circuit, leakage of the battery when the battery is inserted in the reverse direction is prevented, and a short circuit prevention circuit is not required. Further, according to the present invention, since the guard jumper wire is attached by the automatic insertion machine using the jumper wire,
In addition to being inexpensive, its manufacture becomes easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a battery storage device according to the present invention.

FIG. 2 is a diagram showing a relationship between a positive terminal jumper wire and a guard jumper wire of the battery storage device according to the present invention, and a positive electrode terminal and a negative electrode terminal of the battery.

FIG. 3 is a view showing a state where a battery is inserted in a forward direction into a storage section shown in FIG. 1;

FIG. 4 is a view showing a state in which a battery is inserted in the storage section shown in FIG. 1 in a reverse direction.

FIG. 5 is a diagram showing another embodiment according to the present invention.

FIG. 6 is a view showing still another embodiment according to the present invention.

FIG. 7 is a perspective view showing a main part of a battery storage device according to a conventional example.

FIG. 8 is a view showing a state where a battery is inserted in a forward direction into the storage section shown in FIG. 7;

FIG. 9 is a view showing a state in which the battery is inserted in the storage section shown in FIG. 7 in the reverse direction.

[Explanation of symbols]

Reference Signs List 20 battery storage device 22 battery storage portion 26 circuit board 28 battery 28A battery positive terminal (projection) 28B battery negative terminal 40 negative terminal member 32 positive terminal jumper wire 34 guard jumper wire L1 diameter of positive electrode terminal jumper wire L2 Diameter of the jumper wire for guard (projection amount of the jumper wire for guard) L4 Length in the width direction of the positive electrode terminal of the battery L5 Distance between a pair of jumper wires for guard L6 Length in the width direction of the negative electrode terminal of the battery

Claims (1)

[Claims] A storage section for storing a battery, a circuit board disposed in the storage section, and one side of the circuit board facing the positive electrode terminal of the battery so as to contact the protrusion of the positive electrode terminal. A jumper wire for a positive electrode terminal disposed in the housing; an elastically deformable negative electrode terminal member disposed in the housing portion so as to abut on a negative electrode terminal of the battery; and around the jumper wire for the positive electrode terminal of the circuit board. The positive terminal jumper is arranged in a range wider than the width of the protrusion of the positive terminal of the battery in the width direction and smaller than the width of the negative terminal of the battery in the width direction. And a guard jumper wire having a projecting amount larger than the projecting amount of the wire.